Improving the electrochemical properties of Ti3C2Tx MXene for H2S electrochemical sensor by calcination

Liu, Xinran; He, Liang; Zhang, Yuan; Li, Feng

doi:10.1016/j.ceramint.2023.09.190

Cited by 3 publications

(3 citation statements)

References 48 publications

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“…57 The SEM results confirm that the obtained configuration enhances ionic diffusion and ionic conductivity and efficiency applications. 58 Furthermore, the existence of Cu ions in coordination adds significant importance to redox processes.…”

Section: Resultsmentioning

confidence: 99%

Effect of electrolyte optimization on nitrogen-doped MXene (Ti₃C₂T_x) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction

Hassan,

Umar,

Iqbal

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

Effect of electrolyte optimization on nitrogen-doped MXene (Ti₃C₂T_x) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction

Hassan,

Umar,

Iqbal

et al. 2024

New J. Chem.

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“…The band gap of p-type NiCo 2 O 4 was approximately 3.1 eV, which was higher than MXene (1.1 eV) [47]. Another factor that enhances the gas sensing properties of MXene/NiCo 2 O 4 is the abundant functional groups present in MXene, as proved with XPS such as (-O, -Cl, and -Na), which also enhanced active sites as well as oxygen adsorption sites [48]. High carrier mobility and electrical conductivity of MXene also improved the gas sensing properties of MXene/NiCo 2 O 4 .…”

Section: Gas-sensing Mechanismmentioning

confidence: 87%

H2S/Butane Dual Gas Sensing Based on a Hydrothermally Synthesized MXene Ti3C2Tx/NiCo2O4 Nanocomposite

Sadaf,

Zhang,

Akhtar

2023

Molecules

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Real-time sensing of hydrogen sulfide (H2S) at room temperature is important to ensure the safety of humans and the environment. Four kinds of different nanocomposites, such as MXene Ti3C2Tx, Ti3AlC2, WS2, and MoSe2/NiCo2O4, were synthesized using the hydrothermal method in this paper. Initially, the intrinsic properties of the synthesized nanocomposites were studied using different techniques. P-type butane and H2S-sensing behaviors of nanocomposites were performed and analyzed deeply. Four sensor sheets were fabricated using a spin-coating method. The gas sensor was distinctly part of the chemiresistor class. The MXene Ti3C2Tx/NiCo2O4-based gas sensor detected the highest response (16) toward 10 ppm H2S at room temperature. In comparison, the sensor detected the highest response (9.8) toward 4000 ppm butane at 90 °C compared with the other three fabricated sensors (Ti3AlC2, WS2, and MoSe2/NiCo2O4). The MXene Ti3C2Tx/NiCo2O4 sensor showed excellent responses, minimum limits of detection (0.1 ppm H2S and 5 ppm butane), long-term stability, and good reproducibility compared with the other fabricated sensors. The highest sensing properties toward H2S and butane were accredited to p–p heterojunctions, higher BET surface areas, increased oxygen species, etc. These simply synthesized nanocomposites and fabricated sensors present a novel method for tracing H2S and butane at the lowest concentration to prevent different gas-exposure-related diseases.

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“…Two-dimensional (2D) materials occupy a low surface density due to the large surface area. Compared to their bulk form, 2D materials have other alluring characteristics including high electrical conductivity and glorious mechanical properties, which are beneficial for electrocatalysts. − MXenes are a family of 2D transition metal carbides which have been intensively studied in recent years and are expanding rapidly in both types and applications. − They are also studied as efficient electrocatalysts for water splitting, ORR, nitrogen reduction reaction, and alcohol oxidation reactions. − Of all MXenes, Ti 3 C 2 T x gets the most attention. Researchers have found that, compared to commercial carbon supports, the interactions between the Pt nanoparticles and the MXene (Ti 3 C 2 T x ) substrate can prevent the agglomeration of Pt nanoparticles during electrochemical reactions .…”

Section: Introductionmentioning

confidence: 99%

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

Xue,

Fu,

Kang

et al. 2024

ACS Appl. Nano Mater.

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Proton exchange membrane fuel cells suffer from performance degradation caused by the oxidation and corrosion of carbon supports. Metal−platinum interactions can enhance the catalytic activity and stability due to compositional and geometric effects. Two-dimensional MXenes have been intensively studied in recent years and are expanding rapidly in both types and applications. Recently, ORR performances of dual-transition metal MXenes with abundant surface Mo vacancy have been demonstrated as efficient electrocatalysts toward oxygen reduction reaction in an alkaline solution. In this study, the electrochemical performances of Mo-based MXenes-supported Pt electrocatalysts toward oxygen reduction reaction are investigated in an acidic solution. Compared with the Pt/C catalysts, Pt/Mo 2 TiC 2 F x exhibits improved durability, with a 28.7 mV negative shift of the half-wave potential after continuous scanning of 5000 cycles, which is superior to Pt/C with an 84.3 mV negative shift. The proton-exchange membrane fuel cell with Pt/Mo 2 TiC 2 F x as the cathode catalyst also shows excellent activity and stability with a 0.7% potential fade after 9 h. According to the morphology evolution during oxygen reduction, the excellence in electrochemistry is due to the coherent interface between Pt and MXene, which provides a high binding force between Pt nanoparticles and the supporting materials.

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Improving the electrochemical properties of Ti3C2Tx MXene for H2S electrochemical sensor by calcination

Cited by 3 publications

References 48 publications

Effect of electrolyte optimization on nitrogen-doped MXene (Ti₃C₂T_x) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction

Effect of electrolyte optimization on nitrogen-doped MXene (Ti₃C₂T_x) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction

H2S/Butane Dual Gas Sensing Based on a Hydrothermally Synthesized MXene Ti3C2Tx/NiCo2O4 Nanocomposite

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

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Improving the electrochemical properties of Ti3C2Tx MXene for H2S electrochemical sensor by calcination

Cited by 3 publications

References 48 publications

Effect of electrolyte optimization on nitrogen-doped MXene (Ti3C2Tx) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction

Effect of electrolyte optimization on nitrogen-doped MXene (Ti3C2Tx) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction

H2S/Butane Dual Gas Sensing Based on a Hydrothermally Synthesized MXene Ti3C2Tx/NiCo2O4 Nanocomposite

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

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Effect of electrolyte optimization on nitrogen-doped MXene (Ti₃C₂T_x) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction

Effect of electrolyte optimization on nitrogen-doped MXene (Ti₃C₂T_x) coupled with Cu–BTC MOF for a supercapattery and the hydrogen evolution reaction